From: Brian Warner Date: Wed, 14 Jan 2009 23:14:24 +0000 (-0700) Subject: immutable/download.py move recent-downloads history out of Downloader and into a... X-Git-Tag: allmydata-tahoe-1.3.0~196 X-Git-Url: https://git.rkrishnan.org/specifications//%22%3C?a=commitdiff_plain;h=3920e6d1e7c39935c760df509ff7d6326e5694a8;p=tahoe-lafs%2Ftahoe-lafs.git immutable/download.py move recent-downloads history out of Downloader and into a separate class. upload/etc will follow soon. --- diff --git a/src/allmydata/client.py b/src/allmydata/client.py index d1465d6d..f8ecef7a 100644 --- a/src/allmydata/client.py +++ b/src/allmydata/client.py @@ -24,6 +24,7 @@ from allmydata.uri import LiteralFileURI from allmydata.dirnode import NewDirectoryNode from allmydata.mutable.filenode import MutableFileNode, MutableWatcher from allmydata.stats import StatsProvider +from allmydata.history import History from allmydata.interfaces import IURI, INewDirectoryURI, IStatsProducer, \ IReadonlyNewDirectoryURI, IFileURI, IMutableFileURI, RIStubClient @@ -188,6 +189,7 @@ class Client(node.Node, pollmixin.PollMixin): convergence_s = self.get_or_create_private_config('convergence', _make_secret) self.convergence = base32.a2b(convergence_s) self._node_cache = weakref.WeakValueDictionary() # uri -> node + self.add_service(History()) self.add_service(Uploader(helper_furl, self.stats_provider)) download_cachedir = os.path.join(self.basedir, "private", "cache", "download") @@ -208,6 +210,9 @@ class Client(node.Node, pollmixin.PollMixin): d.addErrback(log.err, facility="tahoe.init", level=log.BAD, umid="OEHq3g") + def get_history(self): + return self.getServiceNamed("history") + def init_control(self): d = self.when_tub_ready() def _publish(res): @@ -414,8 +419,7 @@ class Client(node.Node, pollmixin.PollMixin): return uploader.list_all_upload_statuses() def list_all_download_statuses(self): - downloader = self.getServiceNamed("downloader") - return downloader.list_all_download_statuses() + return self.get_history().list_all_download_statuses() def list_all_mapupdate_statuses(self): watcher = self.getServiceNamed("mutable-watcher") diff --git a/src/allmydata/history.py b/src/allmydata/history.py new file mode 100644 index 00000000..b2c023c9 --- /dev/null +++ b/src/allmydata/history.py @@ -0,0 +1,23 @@ + +import weakref +from twisted.application import service + +class History(service.Service): + """Keep track of recent operations, for a status display.""" + + name = "history" + MAX_DOWNLOAD_STATUSES = 10 + + def __init__(self): + self.all_downloads_statuses = weakref.WeakKeyDictionary() + self.recent_download_statuses = [] + + def add_download(self, download_status): + self.all_downloads_statuses[download_status] = None + self.recent_download_statuses.append(download_status) + while len(self.recent_download_statuses) > self.MAX_DOWNLOAD_STATUSES: + self.recent_download_statuses.pop(0) + + def list_all_download_statuses(self): + for ds in self.all_downloads_statuses: + yield ds diff --git a/src/allmydata/immutable/download.py b/src/allmydata/immutable/download.py index 4f6ad852..945c8790 100644 --- a/src/allmydata/immutable/download.py +++ b/src/allmydata/immutable/download.py @@ -1164,16 +1164,13 @@ class Downloader(service.MultiService): # It is scheduled to go away, to be replaced by filenode.download() implements(IDownloader) name = "downloader" - MAX_DOWNLOAD_STATUSES = 10 def __init__(self, stats_provider=None): service.MultiService.__init__(self) self.stats_provider = stats_provider self._all_downloads = weakref.WeakKeyDictionary() # for debugging - self._all_download_statuses = weakref.WeakKeyDictionary() - self._recent_download_statuses = [] - def download(self, u, t, _log_msg_id=None, monitor=None): + def download(self, u, t, _log_msg_id=None, monitor=None, history=None): assert self.parent assert self.running u = IFileURI(u) @@ -1192,26 +1189,17 @@ class Downloader(service.MultiService): if not monitor: monitor=Monitor() dl = CiphertextDownloader(self.parent, u.get_verify_cap(), target, monitor=monitor) - self._add_download(dl) + self._all_downloads[dl] = None + s = dl.get_download_status() + if history: + history.add_download(s) d = dl.start() return d # utility functions - def download_to_data(self, uri, _log_msg_id=None): - return self.download(uri, Data(), _log_msg_id=_log_msg_id) + def download_to_data(self, uri, _log_msg_id=None, history=None): + return self.download(uri, Data(), _log_msg_id=_log_msg_id, history=history) def download_to_filename(self, uri, filename, _log_msg_id=None): return self.download(uri, FileName(filename), _log_msg_id=_log_msg_id) def download_to_filehandle(self, uri, filehandle, _log_msg_id=None): return self.download(uri, FileHandle(filehandle), _log_msg_id=_log_msg_id) - - def _add_download(self, downloader): - self._all_downloads[downloader] = None - s = downloader.get_download_status() - self._all_download_statuses[s] = None - self._recent_download_statuses.append(s) - while len(self._recent_download_statuses) > self.MAX_DOWNLOAD_STATUSES: - self._recent_download_statuses.pop(0) - - def list_all_download_statuses(self): - for ds in self._all_download_statuses: - yield ds diff --git a/src/allmydata/immutable/filenode.py b/src/allmydata/immutable/filenode.py index b2b63c5b..b8df90ce 100644 --- a/src/allmydata/immutable/filenode.py +++ b/src/allmydata/immutable/filenode.py @@ -266,11 +266,14 @@ class FileNode(_ImmutableFileNodeBase, log.PrefixingLogMixin): def download(self, target): downloader = self._client.getServiceNamed("downloader") - return downloader.download(self.get_uri(), target, self._parentmsgid) + history = self._client.get_history() + return downloader.download(self.get_uri(), target, self._parentmsgid, + history=history) def download_to_data(self): downloader = self._client.getServiceNamed("downloader") - return downloader.download_to_data(self.get_uri()) + history = self._client.get_history() + return downloader.download_to_data(self.get_uri(), history=history) class LiteralProducer: implements(IPushProducer)